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Callicarpa dichomata 'Duet'
New Variegated Beautyberry Released from the Arboretum

If you’re looking for something to brighten up your garden, we may have just the plant for you. A variegated beautyberry, ‘Duet’,
was just released by the U.S. National Arboretum. This sport of Callicarpa dichotoma var. albafructus has medium green leaves with
distinct yellow margins. Small white fruit appear in late summer and persist through mid-autumn. ‘Duet’ is a small, rounded shrub
that is well suited to a variety of landscape uses. It is hardy in USDA zones 5 to 8 and performs best in light shade.

‘Duet’ beautyberry was discovered by two researchers working at Tennessee Technological University in Cookeville, Tenn. Impressed by
the attractive foliage and stability of the variegation pattern, these researchers felt the plant would have a place in industry but did not have a mechanism
in place for evaluation and cultivar release. They partnered with Dr. Sandra Reed, a plant breeder at the Arboretum’s Floral and Nursery Plant
Research Unit worksite in McMinnville, Tenn. Dr. Reed propagated the plant and distributed it to cooperators throughout the U.S. Based on input
from those cooperators, the Arboretum, in cooperation with Tennessee Technological University, released the cultivar in November 2006. It is
currently being propagated by growers and is expected to be available at the retail level in 2008. Check out our revised
Callicarpa 'Duet' Fact Sheet [PDF file].

More Detailed Information:
The U.S.D.A., A.R.S., U.S. National Arboretum, in cooperation with Tennessee Technological University, announces the release of 'Duet' (NA 72235),
a new Callicarpa dichotoma cultivar introduced by the nursery crop breeding program at the McMinnville, Tennessee worksite of the U.S. National
Arboretum. This new release was selected at Tennessee Technological University by Dr. Gary Bachman and Mr. Edgar Davis, and tested and released by
Dr. Sandra Reed of the U.S. National Arboretum. It is well suited to a variety of landscape uses, including as a background planting in the shrub border,
a specimen plant, and deciduous hedge or screen, or mass planted in larger areas.

Callicarpa dichotoma 'Duet' beautyberry was selected for its variegated foliage. Leaves are medium green with distinct yellow margins. It is the
first stable variegated plant found in the genus. Like other Callicarpa, its disease and insect tolerant foliage make it an ideal plant for a low maintenance
landscape. It is a small, rounded shrub that has grown 1.0 meters high and 1.0 meters wide in 4 years in McMinnville, Tenn. It produces clusters of small white
fruit in late summer.

'Duet' is a variegated sport of Callicarpa dichotoma var. albafructus that was discovered in 2000. It is hardy in USDA zones 5-8, and
performs best in light shade. Plants are readily propagated in the nursery from softwood cuttings using 4000 ppm KIBA, with rooting occurring within four weeks.
'Duet' has been evaluated by cooperators in Alabama, Arkansas, Connecticut, Florida, Georgia, Illinois, Indiana, Kentucky, Maryland, Massachusetts, Missouri,
New Jersey, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas and Virginia. The cultivar has not shown unusual features that
would indicate potential invasiveness.

Plants were distributed to cooperating nurseries for evaluating in 2003, and for stock increase in 2005. The U.S. National Arboretum does not have stock plants
of 'Duet' available for general distribution, but can provide a limited number of rooted cuttings to interested propagating nurseries. The U.S. National Arboretum
can also provide a list of propagating nurseries offering these plants for sale. Requests for this list should be addressed to: Dr. Sandra Reed, U.S. National
Arboretum, 472 Cadillac Lane, McMinnville, TN 37110, or Sandra.Reed@ars.usda.gov.

The name 'Duet' will be registered with the International Registration Authority for unassigned woody ornamentals in accordance with the International Code of
Nomenclature for Cultivated Plants, 1995. Genetic material of this release will be deposited in the National Plant Germplasm System where it will be available for
research purposes, including development and commercialization of new cultivars. It is requested that appropriate recognition if this germplasm contributes to the
development of a new breeding line or cultivar.

The U.S. National Arboretum is the leading institution in the United States conducting long-term hybridization, testing and evaluation
of trees and shrubs. Over 650 named cultivars have been released by the Arboretum to the ornamental nursery and floral industries.